Add Choppiness Index (CHOP) implementation and tests

- Implemented ChopIndicator for Quantower with configurable period and cold value display.
- Created Chop class for calculating the Choppiness Index with detailed documentation.
- Added comprehensive unit tests for Chop functionality, covering various market conditions and edge cases.
- Developed markdown documentation for CHOP, detailing its historical context, mathematical foundation, and usage examples.
- Established a remediation plan for channel indicators documentation, identifying gaps and prioritizing updates.

lib/dynamics/chop/Chop.Quantower.cs

@@ -0,0 +1,51 @@
+using System.Drawing;
+using System.Runtime.CompilerServices;
+using TradingPlatform.BusinessLayer;
+
+namespace QuanTAlib;
+
+[SkipLocalsInit]
+public sealed class ChopIndicator : Indicator, IWatchlistIndicator
+{
+    [InputParameter("Period", sortIndex: 1, 2, 1000, 1, 0)]
+    public int Period { get; set; } = 14;
+
+    [InputParameter("Show cold values", sortIndex: 21)]
+    public bool ShowColdValues { get; set; } = true;
+
+    private Chop _chop = null!;
+    private readonly LineSeries _chopSeries;
+
+    public static int MinHistoryDepths => 0;
+    int IWatchlistIndicator.MinHistoryDepths => MinHistoryDepths;
+
+    public override string ShortName => $"CHOP {Period}";
+    public override string SourceCodeLink => "https://github.com/mihakralj/QuanTAlib/blob/main/lib/dynamics/chop/Chop.Quantower.cs";
+
+    public ChopIndicator()
+    {
+        OnBackGround = true;
+        SeparateWindow = true;
+        Name = "Choppiness Index";
+        Description = "Measures market trendiness (E.W. Dreiss)";
+
+        _chopSeries = new LineSeries(name: "CHOP", color: Color.Yellow, width: 2, style: LineStyle.Solid);
+
+        AddLineSeries(_chopSeries);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    protected override void OnInit()
+    {
+        _chop = new Chop(Period);
+        base.OnInit();
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    protected override void OnUpdate(UpdateArgs args)
+    {
+        TValue result = _chop.Update(this.GetInputBar(args), args.IsNewBar());
+
+        _chopSeries.SetValue(result.Value, _chop.IsHot, ShowColdValues);
+    }
+}